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Which occurs at a lower stress value ductile deformation or elastic deformation?
Wiki User
∙ 9y ago
Ductile deformation is when rock is given enough stress to break. If the stress is less, it will bend but not break.
Wiki User
∙ 9y ago
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The shape of the rock changes because of stress in a process called?
deformation
What builds stress up and helps release that stress during an earthquake?
the elastic rebound theory
What is non-ductile?
Materials like gold and copper can be bent; they are malleable or ductile. Materials that are brittle and break easily are non-ductile. Conventional concrete is non-ductile (and breaks under stress of earthquakes)(or other tensile challenge). Metal (steel) mesh or synthetic fibers are added to concrete to make it more ductile.
What type of stress occurs when lithospheric plates scrape past each other?
Shear stress.
What type of stress occurs at a transform plate boundary?
shearing work
Is it true Elastic deformation occurs when a material deforms as stress is applied?
Up to a point, it is possible to elastically deform any material. If the force is released, the material relaxes back to its original shape. If a material is deformed too much, the deformation becomes permanent (plastic deformation) or fracture will occur in a non-ductile material such as glass.
What type of deformation leads to earthquakes?
iT CHANGES THE SHAPE OF THE ROCK BUT DOES NOT CAUSE EARTHQUAKES
What are the 4 stages of elastic rebound hypothesis?
1) zero stress on elastic material/it's at original position 2) stress is applied/deformation occurs 3) release of energy (earthquake) 4) elastic material rebounds
What are the Stress-strain characteristics of ductile materials?
initially there is the linear elastic region which obeys the hooks law :stress is directly proportional to the strain. at the end of the linear elastic region the ductile material reaches the yield point beyond which any change in dimensions become permanent. the material goes through a yield plateau in which stress is constant and the strain changes. after crossing the yield plateau the ductile material goes through the strain hardening region in which the deformation is permanent but as the region goes on the stress increases with the strain. here the strength of the ductile material increases as it is strain hardened. at a point it reaches the ultimate load point. This is the maximum load taken by the material. after which further deformation causes decrease in strength or the stress goes on decreasing finally breaking at the breaking load point. this region is called the post-ultimate region.
What is the process by which the shape of a rock changes because of stress?
This is technically known as strain. If the change in shape occurs by fractures forming through the rock this is known as a brittle deformation. If however the rock deforms like a piece of clay being squashed this is known as ductile deformation.
What is the difference between deformation modulus and Young's modulus?
Young Modulus is the slope of the stress-strain diagram in the linear elastic region. This is the most common use of modulus. As the material goes non-linear in the stress strain curve, thre slope will get increasingly lower. In this case one connects the end points of the stress strain diagram at the point of interest with a straight line. The slope of that straight line is the secant modulus.
A change in the shape of rock caused by a force placed on it?
erosion and it is quite similar to how sand was made because of the waves and all the earth's damage on it. Pretty simple if you think of it that way. a rock can erode if it is continuously pelted with water, wind, sand, rocks, etc. also a rock can change shape if it is melted and cools back down.
What is the amount of stress applied to a material divided by the elastic strain caused by that stress called?
This is known as the Modulus of Elastisity, or Youngs Modulus (in tension/compression) and will be a constant as long as the deformation is in the elastic range.
A piece of copper originally 305 mm long is pulled in tension with a stress of 276 Mpa If the deformation is entirely elastic what will be the resultant elongation?
Tension = Module x deformation Deformation= 2,51x10^-3 = 0,25%
What is Any time stress causes rock to change is?
Any time stress causes rocks to change, deformation occurs.
Any time stress causes rocks to change what is the result?
Any time stress causes rocks to change, deformation occurs.
Is the result Any time stress causes rocks to change?
Any time stress causes rocks to change, deformation occurs.
